Expansion valves are critical components in HVAC systems, refrigeration units, and cooling systems. Parts like thermostatic bulbs, sensing lines, valve seats, valve stems, spring assemblies, diaphragms, needle valves, and caps regulate refrigerant flow, ensuring optimal cooling, energy efficiency, and system performance.
-10%Daikin-McQuay 668043001 Thermostatic Expansion Valve 1/4" X 3/8" ODFSpecial Price $303.92 Regular Price $337.36
-10%Rheem-Ruud PD619063 4-Ton Thermal Expansion Valve (Txv) Kit R-22Special Price $274.34 Regular Price $304.52
-13%Rheem-Ruud 61-106238-49 Expansion Valve(TxV) 5/8"X7/8" ODFSpecial Price $192.99 Regular Price $221.94Out of stock
-13%Utica-Dunkirk 240005475 Auto Expansion ValveSpecial Price $155.68 Regular Price $179.03Out of stock- -10%
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- -13%Lennox 29M11 ODF 4Ton 30" Cap Thermal Expansion Valve 3/8" X 5/8"Special Price $140.38 Regular Price $161.44
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Heat Pump Expansion Valve Replacement Parts
Expansion valves are essential in HVAC systems, regulating refrigerant flow for optimal cooling performance. These valves maintain system efficiency, prevent overheating, and ensure consistent temperature control, improving overall system reliability.
Failure of expansion valve components can result in poor cooling efficiency, temperature inconsistencies, or system malfunctions. The thermostatic bulb senses refrigerant temperature, controlling valve operation. The valve stem manages refrigerant flow into the evaporator, while the spring assembly controls valve pressure. The diaphragm adjusts the flow based on pressure changes, and the needle regulates refrigerant entering the system for efficient cooling.
The electronic expansion valve controls refrigerant flow using electronic sensors, the thermal expansion valve adjusts refrigerant flow based on temperature variations in the system, and the thermostatic expansion valve regulates refrigerant flow through a temperature-sensing bulb.
At PartsHnC, we offer high-quality expansion valve parts, including adjustment screws, cover plates, inlet ports, and outlet ports, from trusted brands like Utica-Dunkirk, Aace, York, Amana-Goodman, Rheem-Ruud, and Daikin-McQuay, all at competitive prices.
FAQs
Can an undercharged refrigerant system cause expansion valve issues?
Yes, an undercharged refrigerant system can cause the expansion valve to malfunction by not having enough refrigerant to regulate. This can lead to overheating of the evaporator coil and inefficient cooling.
Why do some systems use multiple expansion valves, and what are the benefits?
Some systems, especially large or multi-zone systems, use multiple expansion valves to ensure each section of the system receives the correct amount of refrigerant. This allows for more precise control, improving overall efficiency and performance.
What is the average cost of replacing an expansion valve in an HVAC system?
Replacing an expansion valve generally costs between $350 and $800 for home AC units and $150 to $350 for automotive systems.The price depends on factors like system size, location, and labor charges.
Where can I find heat pump expansion valves for HVAC systems?
For high-quality heat pump expansion valves, check reputable suppliers like PartsHnC, offering a variety of valves compatible with leading HVAC brands at competitive prices, ensuring optimal system performance.
Can cleaning an AC expansion valve improve its performance?
Cleaning an AC expansion valve is not typically advised, as it can be challenging and may cause damage. If the valve is clogged or malfunctioning, it's usually better to replace it entirely to ensure proper system function.